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American History Maps: America since 1945

This LibGuides contains various types of maps representing different periods in American History.

America Since 1945

The United States added two new states after 1945, Hawaii and  Alaska in 1959. It participated in several wars, including the Korean War, Vietnam War, Gulf War, and War on Terror in Iraq, Afghanistan, and Pakistan. Immigration, legal and illegal, continues to present challenges and is changing the face of the nation.

Click on maps to link to source and zoom in on details.

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America since 1945 Maps

Visualizing 200 Years of U.S. Population Density 
Based on U.S. Census data. One  drawback of census data is that it is not able to properly account for Native American populations.
Map - click map to go to website to activate

Source:Vivid Maps.Map made using Jonathan Schroeder’s county-level decadal estimates. 


Interactive Map of U.S. State Formation History 

Click on map to connect to interactive features. Click on any year, 1876 to 1900-present to see how the United States has changed and for a brief bit of information. 

Source: Maps of U.S.


Hispanic Population Growth and Dispersion Across U.S. Counties, 1980-2014 - Interactive

Click on map to access interactive features. Drag cursor across timeline to view growth by decade

Source:Source:: Pew Research Center, Hispanic Trends

Immigrants Move Beyond Traditional Gateways
Change in foreign-born adults as a share of total adult county population from 1990 to 2012 
Note: Change in foreign born as a share of total county population is equal to the percentage point difference between the percent of the county population that was foreign born in 2008-2012 compared with that for 1990. Excluded counties are those with fewer than 1,000 residents in 1990 or for which no data were available.

Source: Pew’s analysis of the 1990 decennial census and 2008-2012 American Community Survey


Changing Patterns in U.S. Immigration and Population 1965 through 1980
Click on maps to go to source, then click on View the Graphic. Now click on date range tabs across the top, then  on Unauthorized Immigrants tab. More information is available below maps

Source:  Pew’s analysis of the 1990 decennial census and 2008-2012 American Community Survey


Largest Ancestry 2000 - Where We Come From

Source: U.S. Census Bureau. Available from MAPA website


Geographic  fabrications by Stat, e based on 2000 Census
Click on map to go to source, then click on a state to view related charts and data.

Source:  Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN). and available from CensusScope website.


Ancestry Origin (% population by U.S, County
Click on map to go to source and activate animation

Source: 2011 ACS 5 year

Military Bases in the Continental United States

Click on map to go to source, then click on PDF for larger view.

Source:Originally provided by Geo-Marine Inc. of Plano Texas in 1993. Available at National NAGPRA ( Native American Graves Protection and Repatriation Act) - part of National Park Service website.

Alaska's size compared with the 48 contiguous states - (Albers equal-area conic projection)

Source:  Eric Gaba – Wikimedia Commons user: Sting


Hawaiian Islands

Source: Encyclopedia Britannica